Topic:

Factorization

Answer:

5. (x - 2)(x² + 2x + 4)

6. (a + 3)(a² - 3a + 9)

Step-by-step explanation:

find the cube root of two terms and use the formula (a + b)(a² - ab + b²) for a³ + b³; and (a - b)(a² + ab + b²) for a³ - b³.